
Mold in Your AC, and the Black Stuff That Is Not
Vent dust is rarely mold. Fix moisture first, clean the coil, and be wary of remediation sold off a flashlight photo.
Keeping a Florida home comfortable, from DIY maintenance to knowing when to call a pro. Written by people who fix AC for a living.

Vent dust is rarely mold. Fix moisture first, clean the coil, and be wary of remediation sold off a flashlight photo.

Hum outside, fan not spinning: the capacitor. Why heat kills it and what a real diagnosis includes.

What condenser surge protection stops, and why inverter systems need it.

Holding setpoint while running all day is normal. Losing ground is the symptom worth chasing.

Which AC smells mean shut it off now, and which are the Florida default.

Reset once, check the filter and coil, then stop. Repeated trips are the diagnosis.
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